Device for improving the fullness of sound at the striking of timepieces and clocks hanging on the wall



F. WEIHENMEYER Filed Jan. 26

TIMEPIECES AND CLOCKS HANGING ON THE WALL Aug. 5, 1924.-

DEVICE FOR IMPROVING .THE FULLNESS OF SOUND AT THE STRIKING 0F formed by meansofaa hollow frame which Patented Aug 5, 1924.

.umrsnsrarss PATENT -mmnmon WEIHEN-MEYE'R. or zUrFnNnAUsEN', G R-M NY) P'DEVICE ron'. mnovmernn FULLNESS or serum Arr THE s'rmxruo' or 'rImEPIEcEs annjonocns HANGING on. THE W'ALL.

Application filed January 2a,.i924. --Scria1 170,888.83

"21b all whom tit ma 05mm.-

- ,Be it known that I', Fnmnnro'rr Werner:-

Jmi'nma-citizemofthe German Republic,

residing at Zu'fl'enhausem Germany,- have inl vented certain new.and useful Improve; merits in 9. Device for Improving the Full} ness of Sound at the- Striking of Timepieces and Clooks'Ha'nging on the I all, of which the followingis a'speeificat'ion.

1 Thelstrikmg of time pieces and clocks 1 hanging on the-leaves much to. be de- -sire as regards fullness-strength so-. noiousnessof sound. The invention has for its object to elimirfiite this.inconvenience-by oonstructingf th'e back wall of the clock-case, in order' to avoid. the gong-like j soun"d which buzzes in clock-cases and is different 7 every time the clock ,is striking, -in--su'ch a manner tha't a hollow space is is in "Contact with fluted wooden supports on whichjs slightly stretched sounding board provided withribs ismounted.

- the slight" stretching or tensioning of the soundingfboard a strong transmissiou of the gong-like sound upon comparatively narrow ledges is ensured, this-soun'tbbeing I further transmitted b p or flutes to another he low frame so that a sound at the striking oftime-pieces and the hollowspaces perfect acoustic in the space is ensured. The invention will :be best understood from a. consideration of the-following detailed description taken inconnection with the aceompan ingdrawings-forminga part of this speci cation, with, the understand- I ingltliat while'on' the drawings one embodiment ofthe'invention is disclosed. the

- invention is not confined to any strict cow formity with'the showing of the drawings, ut may be embodied in any manner'which does n0t.make a material (le]7arturo from the salient features of the invention.

In the-drawings:

.-.;Fig. 1 shows the back wall for a time' place case.

. gFigL 2 is a crossseotion on line A- Bof Fig. 1.

Fig. 3 is axcrtical section on line C--D pf Fig. 1. a Y v .f

IS a per'spectire riew partly in sec- Fig.4" tron. c i

According to the invent-ion ahollow frarnc. e is mounted through the intermediary ofwooden supports I) stayed by means of'inelined ribs 0, said hollow frame formingthe rear wall of the time-piece-casing. 1

By the staying by means of the ribsyo a slightly vaulted shape is given tothe' sound- Y ing boardq. a The outer end of the sounding board is in-contact-withthe comparatively narrow sjurfaces' of ,the wooden supports 6,,

this surface havingflongitudinal flutes 'd ex-- tending from one end to the other? The hollow surfaces formed by thefflutes d in the wooden supports b'are covered to the rear. bya hollow frame composed of wooden ledgeso-enclosiug 'hollo'w spaces e', said frame being open at the centre 50' that the Y intensified gong-like sound can escape through this,- open central part of-frame e. In this manner the Q'Ollg-llkfl sound 15 greatly strengthened and hold together, wherefrom Y results a lullnoss of sound which hitherto could not be attained in cloelt'cases .l'claim:- j Device for improving the .fullness of clocks hanging on the wall comprising in i-mubinalion with tl c eloclt ease a soundin n1: innate-rt wnmEN nYER.

Witnesses:

- VIK'lOR ZENT, 0 Euro 7. .SPITZ sounding 

